PH

Philip W. Holbrook

BT Baroid Technology: 3 patents #9 of 87Top 15%
NI Nl Industries: 1 patents #92 of 213Top 45%
📍 Houston, TX: #5,364 of 21,073 inventorsTop 30%
🗺 Texas: #33,546 of 125,132 inventorsTop 30%
Overall (All Time): #1,281,640 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5965810 Method for determining sedimentary rock pore pressure caused by effective stress unloading 1999-10-12
5859367 Method for determining sedimentary rock pore pressure caused by effective stress unloading 1999-01-12
5305836 System and method for controlling drill bit usage and well plan Sanjeev Mittal 1994-04-26
4710906 Method and system for monitoring the stability of boreholes William Bradley 1987-12-01